Function bufferStartsWith

deps/undici/src/lib/web/fetch/formdata-parser.js:513–525

* Checks if {@param buffer} starts with {@param start} * @param {Buffer} buffer * @param {Buffer} start * @param {{ position: number }} position

(buffer, start, position)

 * @param {{ position: number }} position
 */
function bufferStartsWith (buffer, start, position) {
  if (buffer.length < start.length) {
    return false
  }

  for (let i = 0; i < start.length; i++) {
    if (start[i] !== buffer[position.position + i]) {
      return false
    }
  }

  return true
}

function parsingError (cause) {
  return new TypeError('Failed to parse body as FormData.', { cause: new TypeError(cause) })